EP 4083083 A1 20221102 - HIPE FOAM AND METHOD FOR PRODUCING SAME
Title (en)
HIPE FOAM AND METHOD FOR PRODUCING SAME
Title (de)
ROHRSCHAUM UND VERFAHREN ZUM PRODUZIEREN DESSELBEN
Title (fr)
MOUSSE HIPE ET SON PROCÉDÉ DE PRODUCTION
Publication
Application
Priority
- JP 2020024743 A 20200217
- JP 2020024744 A 20200217
- JP 2020194659 A 20201124
- JP 2021005885 W 20210217
Abstract (en)
Provided is a HIPE foam (1) including a vinyl-based crosslinked polymer as a base material resin. The vinyl-based crosslinked polymer is formed by crosslinking a polymer of a styrene-based monomer and/or an acryl-based monomer. An apparent density ρ of the HIPE foam (1) is 35 kg/m<sup>3</sup> or more and 500 kg/m<sup>3</sup> or less. A molecular weight between crosslinking points of the vinyl-based crosslinked polymer forming the HIPE foam (1) is 2 × 10<sup>3</sup> or more and 2 × 10<sup>5</sup> or less. The HIPE foam (1) is used as, for example, a machinable material or an impact absorbing material.
IPC 8 full level
C08F 212/08 (2006.01); C08F 2/32 (2006.01); C08F 218/08 (2006.01); C08F 220/18 (2006.01)
CPC (source: EP US)
C08F 2/30 (2013.01 - EP); C08F 2/32 (2013.01 - US); C08F 212/08 (2013.01 - EP US); C08F 218/04 (2013.01 - US); C08F 220/18 (2013.01 - US); C08J 9/22 (2013.01 - US); C08J 9/283 (2013.01 - EP); C08J 2201/026 (2013.01 - EP); C08J 2201/028 (2013.01 - EP); C08J 2201/05 (2013.01 - EP); C08J 2205/044 (2013.01 - EP); C08J 2325/14 (2013.01 - EP); C08L 25/14 (2013.01 - EP)
C-Set (source: EP)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
Designated validation state (EPC)
KH MA MD TN
DOCDB simple family (publication)
EP 4083083 A1 20221102; EP 4083083 A4 20240403; CN 114829427 A 20220729; CN 114829427 B 20231013; US 2023075291 A1 20230309; WO 2021166947 A1 20210826
DOCDB simple family (application)
EP 21756782 A 20210217; CN 202180007315 A 20210217; JP 2021005885 W 20210217; US 202117760410 A 20210217